"First time Iâ d ever hired a structural engineer, so canâ t say."

"Great job. It looks like new siding after repairs."

"Evolution Drafting did a great job modifying my existing plans and updating for Arizona codes and took care of the structural engineering as well."

We’re a family owned and operated company that values honesty and integrity, and stands behind our work. We offer over 40 years of industry experience. We specialize in Asphalt Shingle Roofing installation, replacement, and repairs. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

JL & A Structural Engineers are qualified by experience, education and registration to design any type of Residential, Commercial or Industrial building including church structures, using concrete,steel or wood. We are also qualified in buildings structural inspections for renovation, fire restoration, safety, insurance or buying purposes and professional witness,. We can design your dog house or the Taj Mohol at a reasonable responsible price. Give us a call to set an appointment to appraise your problem, we are fast but thorough. We are competitive but ethical. We service Pittsburgh and metropolitan area. \n\n\n

"Dee is a solid guy and excellent engineer. My project required him to design and create the engineering specs to navigate our town's permitting process. His thoroughness exceeded my expectations. I recommend and trust Dee on any future project."

"If your looking for an architect, just stop here. This was my first time ever hiring an architect and the experience has been educational, professional, and most importantly secured. He went to bat for my business and hit a home run. Very informative, gave updates on the work being done. He went above and beyond with what he has to do as he helped me locate several contractors. I would stop here, and roll with Lynn."

"First time using Gerhart Engineering. Will use again."

"The quality, design service, price and cabinet options were excellent. I would recommend them to my friends."

"Tim, is extremely Knowledgeable in his field. He showed up on time and he was pleasant and nice to work with. Tim put together drawings for a retainer wall I had built. I was very pleased with the drawing. He certified the drawing and signed off. Tim, thanks a lot. I highly recommend Tim if you need an experience Engineer that deals with retainer walls. Wanda. Langhorne, PA -Residence Customer."